summaryrefslogtreecommitdiff
path: root/openbsd-compat/bsd-misc.c
blob: 1c1e43a5266e948429dd2246558f663a25c0b535 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
 * Copyright (c) 1999-2000 Damien Miller.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "includes.h"

RCSID("$Id: bsd-misc.c,v 1.10 2002/07/08 21:09:41 mouring Exp $");

char *get_progname(char *argv0)
{
#ifdef HAVE___PROGNAME
	extern char *__progname;

	return __progname;
#else
	char *p;

	if (argv0 == NULL)
		return "unknown";	/* XXX */
	p = strrchr(argv0, '/');
	if (p == NULL)
		p = argv0;
	else
		p++;
	return p;
#endif
}

#ifndef HAVE_SETLOGIN
int setlogin(const char *name)
{
	return(0);
}
#endif /* !HAVE_SETLOGIN */

#ifndef HAVE_INNETGR
int innetgr(const char *netgroup, const char *host, 
            const char *user, const char *domain)
{
	return(0);
}
#endif /* HAVE_INNETGR */

#if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
int seteuid(uid_t euid)
{
	return(setreuid(-1,euid));
}
#endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */

#if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
int setegid(uid_t egid)
{
	return(setresgid(-1,egid,-1));
}
#endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */

#if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
const char *strerror(int e)
{
	extern int sys_nerr;
	extern char *sys_errlist[];
	
	if ((e >= 0) && (e < sys_nerr))
		return(sys_errlist[e]);
	else
		return("unlisted error");
}
#endif

#ifndef HAVE_UTIMES
int utimes(char *filename, struct timeval *tvp)
{
	struct utimbuf ub;

	ub.actime = tvp[0].tv_sec;
	ub.modtime = tvp[1].tv_sec;
	
	return(utime(filename, &ub));
}
#endif 

#ifndef HAVE_TRUNCATE
int truncate (const char *path, off_t length)
{
	int fd, ret, saverrno;

	fd = open(path, O_WRONLY);
	if (fd < 0)
		return -1;

	ret = ftruncate(fd, length);
	saverrno = errno;
	(void) close (fd);
	if (ret == -1)
		errno = saverrno;
	return(ret);
}
#endif /* HAVE_TRUNCATE */

#if !defined(HAVE_SETGROUPS) && defined(SETGROUPS_NOOP)
/*
 * Cygwin setgroups should be a noop.
 */
int
setgroups(size_t size, const gid_t *list)
{
	return 0;
}
#endif